xerophilous
Concise Oxford English Dictionary © 2008 Oxford University Press:
xerophilous /zɪəˈrɒfɪləs, zɛ-/
▶adjective Botany & Zoology (of a plant or animal) adapted to a dry climate or habitat.
– derivatives
xerophile noun.
xerophile noun.
'xerophilous' also found in these Oxford entries:

